JP2003197337A - Terminal of socket connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printed circuit board combination capable of reducing an impact phenomenon between the printed circuit board and a contact electronic device such as an electric connector, of providing insertion force when connected, and of preventing the contact part of a terminal of the contact electronic device from being damaged. <P>SOLUTION: This printed circuit board combination includes a board provided with a tilting guide side. The tilting guide side can be inserted into a card edge connector. The board is equipped with multiple columns of conductive sheets for connecting it to the terminals of the connector. Ends of the respective conductive sheets can be bent from the direction of the guide side to the center position of the printed circuit board combination, and an abutting part bent at a smooth angle is formed at a connecting position of the main body part and the end of each conductive sheet. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a central processing unit (CP).
U) to a circuit board, and more particularly to terminals of the socket connector which can save cost and material.

[0002]

Socket connectors for connecting to electronic devices are widely known to have general application in the computer industry, such as connecting a central processing unit (CPU) to a circuit board. Referring to FIG. 1, a type of Zero Insertion Force (ZIF) socket connector is disclosed. The socket connector 10
Includes an insulating housing 12 having a receiving hole 14 for receiving a terminal (not shown) and a cover 16 movable with respect to the housing 12. The cover 16 has a through hole 18 corresponding to the housing hole 14 of the housing,
The central processing unit 20 is supported, the pins 22 of the central processing unit 20 penetrate through the through holes 18 of the cover, and some of the pins extend into the accommodation holes 14. Actuator 24
Drives the cover 16 to drive the pin 22 of the central processing unit 20.
Is inserted into the terminal, the terminal of the main body 12 and the pin 22 are electrically connected.

Referring to FIG. 2, the terminal 26 is housed in a housing hole 14 provided in the insulating housing 12 of the conventional socket connector 10. As shown in FIG. 3, the terminal 26 punched from the sheet metal includes a flat body 28 that interferes with the housing hole 14, two elastic arms 30 that extend from the flat body 28 so as to be inclined to each other, and a solder. A soldering portion 32 that is used to mount a ball (not shown) and that extends vertically from the flat body 28. As shown in FIG. 3, the plurality of terminal metal sheets 26 '(which form the terminals 26) connected to the strip 34 after the punching operation are arranged in a straight line. In order to save the material of the sheet metal from which the terminals 26 are made, the corresponding terminal metal sheets 26 'are closely arranged on the strips 34. However, due to the structure of the two elastic arms of the terminal 26, the distance between two adjacent terminal metal sheets 26 ′ needs to be at least twice the width of the elastic arm 30 of the terminal 26, and thus is actually 2 Reach 0.54 mm. The center distance of the accommodation hole 14 of the housing 12 of the adjacent connector is 1.27 mm, which is half the distance between the two adjacent terminal metal sheets 26 'of the strip 34. For each row receiving hole 14 of the housing 12, in each assembly process, the terminals 26 on one row of strips 34 are intermittently assembled into the receiving hole 14, so that the receiving holes are inserted through the two assembly processes. All of them are plugged in 14, but there are disadvantages in terms of improving assembly efficiency and reducing costs.

Also, the terminals arranged along the strip are formed with greater spacing, and most of the material between the two flat bodies of adjacent terminals is cut away, thus wasting sheet metal material. There is a risk of

[0005]

[Patent Document 1] US Pat. No. 4,498,725

[Patent Document 2] US Pat. No. 5,833,483

[Patent Document 3] US Pat. No. 6,059,596

[Patent Document 4] US Pat. No. 6,142,810

[Patent Document 5] US Pat. No. 6,159,032

[0006]

SUMMARY OF THE INVENTION The present invention provides a terminal structure, wherein the spacing between two terminal metal sheets adjacent in a strip of the terminal is two adjacent in the housing.
The purpose of the present invention is to improve the efficiency of attaching the terminal to the housing and reduce the waste of material by making the distance between the two receiving holes correspond.

Another object of the present invention is to provide a terminal of a socket connector, which has a simple structure to reduce the cost.

[0008]

To achieve the above object, the present invention provides a socket connector terminal. The terminals are stamped from a sheet metal, whereby a plurality of terminal metal sheets as part of the sheet metal are formed along the strip at appropriate distances. Since the terminal has one elastic arm, the distance between the metal sheets of two adjacent terminals along the strip corresponds to the width of the elastic arm, thus saving material between adjacent terminal metal sheets. Since the terminal metal sheets are arranged at the intervals of the width of the elastic arm, the terminals are arranged most closely along the strip, and the efficiency of assembling the terminals in the housing can be improved. Each terminal metal sheet includes an extended flat body, and the flat body has a first end extending portion,
A first diagonal extension of the second end is provided. The second diagonal stretched portion extends from the side edge of the flat body and is parallel to the first diagonal stretched portion. Since the extension is connected to the strip by a connecting line, the final terminal is easy to disconnect from the strip. The flat body has a first surface. To attach the solder balls, the extension is curved to 90 degrees and the soldering section perpendicular to the first surface is extended. The first stretched portion is flush with the first surface.
The second stretched portion is stretched from the first surface at an angle smaller than 90 degrees with respect to the longitudinal direction of the flat body. When the terminal is assembled in the housing hole of the housing, it interferes with the slot of the housing hole through the support arm and is stably housed in the housing. The second extension part has pins corresponding to the central processing unit inserted through the elastic arms.
Secure sufficient movement space. The elastic arm is installed at an angle to provide an elastic force for stably assembling the pin.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Referring to FIGS. 4 to 8, an electric terminal 100 of the present invention is provided in a receiving hole installed in a housing of a socket connector. The pin 90 of an electronic device (not shown), such as a central processing unit, is inserted into the receiving hole 102.
Since it is housed inside and can move from the position of the solid line to the broken line along the direction of “A” (shown in FIG. 8) between the housing 104 and the terminal 100, an electrical connection between the pin and the terminal is formed. It

Terminal 100 includes a flattened body 106, which extends along the longitudinal axis of the major surface and which includes upper and lower ends. The soldering portion 10 is provided at the lower end of the flat body 106.
8 is installed, which is perpendicular to the main surface. The soldering portion 108 of the flat body 106 has a solder ball 110.
Used to mount (shown in phantom in FIGS. 5 and 6). A portion of the terminal 100 extends from the housing 104 for assembly into the receiving hole 102 of the housing 104 and attachment to a circuit board (not shown).

The support arm 112 is a flat body 106.
From the upper end of the flat main body 106 obliquely with respect to the direction along the vertical axis of the flat body 106. In the present embodiment, the support arm 112 is flush with the flat body 106, is assembled so as to interfere with the slot 114 of the connector housing 104, and comes into contact with the accommodation hole 102 so that the terminal is accommodated in the accommodation hole 102. Holds stable inside. Therefore, the support arm 112 is slightly deformed or twisted, so that the support arm 112 interferes with and is fitted in the slot 114. As long as the support arm 112 of the terminal 100 and the portion of the housing 102 interfere with each other with certainty, even if the slot 114 as a part of the receiving hole 102 is formed by using other conventional techniques, the gist of the present invention can be achieved. There is no contradiction to.

The elastic arm 116 has a flat body 106.
From the side edge (not shown in the figure) of the flat body 106 obliquely with respect to the direction along the vertical axis of the flat body 106. In order to move the pin 90 of the electronic device in the direction of "A", the elastic arm 116 is installed perpendicular to the main surface. The elastic arm 116 applies an elastic force to the pin 90. Figure 7
And, as shown in FIG. 8, for elastic connection, the elastic arm 116 is slightly inclined with respect to a plane perpendicular to the main surface (and thereby also with respect to the main surface). ing).

In the present embodiment, the moving direction "A" of the terminal pin 90 is perpendicular to the flat body 106, but the moving direction of the terminal pin 90 is flat as indicated by the arrow "B". The fact that the direction is parallel to the main surface of the main body 106 does not contradict the gist of the present invention.

As shown in FIG. 9, the terminal 100 of the present invention is manufactured by punching a sheet metal (not shown).
The punching operation forms a plurality of terminal metal sheets 200, which are along a longitudinally extending strip 201 as part of the sheet metal.
It is assembled at certain intervals. After processing in series,
The terminal metal sheet 200 finally forms the terminal 100. The terminal metal sheet 200 includes a main body 202 extending along a horizontal axis. The main body 202 corresponds to the flat body 106 of the final terminal 100, and the horizontal axis of the main body 202 corresponds to the vertical axis of the flat body 106. The main body portion 202 includes a wide first end portion 204.
Reference numeral 4 corresponds to the soldering portion 108 of the terminal 100, and is connected to the strip 201 by a connection wire 206 provided in advance. The wide first end portion 204 is defined by the strip 201.
After being detached from the
08 is formed. The main body 202 is a second main body 202
It includes a first diagonal extension 208 from the end, along a direction inclined to the abscissa. Since the support arm 112 is formed from the first oblique extension 208, a stable connection of the terminal 100 housed in the housing hole 102 of the housing 104 can be secured even if a slight deformation or twist occurs.

The terminal metal sheet 200 has a main body 20.
A second diagonal extension 210 extending from two edges, the second diagonal extension 210 being installed between the first diagonal extension 208 and the enlarged first end 204, and the main body 2
02 is inclined with respect to the horizontal axis. The second diagonal extension 210 corresponds to the elastic arm 116 of the final terminal 100. Therefore, since the insertion force for inserting the pin 90 into the terminal is reduced according to the most preferable deformation state of the elastic arm 116, the second diagonal extension portion 210 is formed.
Are stretched to their maximum length, which results in the least rigidity. The optimal design of the second diagonal extension 210 is to incline the main body 202 by 45 degrees with respect to the horizontal axis. Moreover, the first diagonal stretching portion 208 and the second diagonal stretching portion 2
It is best to have both diagonal extensions parallel to each other in order to place 10 tightly.

The second obliquely extending portion 210 includes the main body portion 20.
Since it bends at the connecting portion with the second diagonally extending portion 210,
Is inclined with respect to the main surface of the main body 202. Therefore, the arcuate portion 300 that can be guided to the final terminal 100 is
Since it is formed between the second diagonal extension 210 and the main body 202, the elasticity of the elastic arm 116 of the terminal 100 can be secured, as shown in FIGS. 7 and 8.

Since each terminal 100 has a single elastic arm 116, each terminal metal sheet has a single second diagonal extension 210 extending laterally to the adjacent terminal metal sheets 200. Therefore, the distance between two adjacent terminal metal sheets 200 is the length of the single elastic arm 116. Accordingly, the terminal metal sheet 200 can be closely arranged, so that space and materials are saved.

The above-mentioned embodiments do not limit the scope of the claims of the present invention, and those skilled in the art of the present invention can make detailed modifications or changes based on the present invention.
All of them belong to the scope of claims of the present invention.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a conventional socket connector.

FIG. 2 is a perspective view of a conventional socket connector terminal.

FIG. 3 is a plan view of a plurality of terminal metal sheets attached to a strip of terminals.

FIG. 4 is a perspective view of a socket connector terminal according to the present invention.

FIG. 5 is a front view of a socket connector terminal according to the present invention.

FIG. 6 is a side view of the socket connector terminal according to the present invention.

FIG. 7 is a top view of the socket connector terminal according to the present invention.

FIG. 8 is an assembly view of a terminal attached to a housing hole of a housing of a socket connector according to the present invention.

FIG. 9 is a plan view of a plurality of terminal metal sheets attached to a strip.

[Explanation of symbols]

90 pin 100 terminals 102 accommodation hole 104 housing 106 flat body 108 Soldering part 110 solder balls 112 Support arm 114 slots 116 elastic arm 200-terminal metal sheet 201 strip 202 Main body 204 first end 206 connection line 208 First oblique stretching section 210 Second Oblique Stretching Part 300 arc-shaped part

Claims (15)

[Claims] 1. A terminal punched out from a sheet metal and housed in a housing hole installed in an insulating housing of a socket connector, the terminal having a first end portion and a second end portion, having a main surface, and a shaft. The main body that is extended in the direction and accommodated in the accommodation hole, and the first end portion of the main body is curved perpendicular to the main surface of the main body in order to attach the solder balls, A soldering portion for mounting a ball, and extending from the second end portion of the main body with an inclination in the axial direction,
By interfering with a part of the housing, the support arm that fixes the terminal in the housing hole and the pin of the electronic device are slantedly extended from the edge side of the main body to be inserted in the housing hole, and the main surface And a resilient arm that is inclined with respect to, and a terminal. 2. The support arm is approximately 45 in the axial direction.
The terminal according to claim 1, wherein the terminal is extended in a direction of degree. 3. The terminal according to claim 2, wherein the second diagonally extending portion extending from the edge side of the main body is parallel to the supporting portion. 4. The terminal according to claim 1, wherein the second obliquely extending portion extending from the edge side of the main body is inclined in a direction of about 45 degrees with respect to the axial direction. 5. The terminal according to claim 1, wherein the support arm is slightly deformed. 6. The terminal according to claim 1, wherein a part of the solder ball arranged in the terminal receiving hole is allowed to protrude from the housing. 7. An axially extending main body having a main surface, a tail portion provided at a distal end of the main body for connecting to a circuit board, and an axially inclined extension. An electric conduction terminal of an electric connector, comprising: a support arm; and an elastic arm that is inclined with respect to an axial direction and a main surface and extends from a main body. 8. The electric conduction terminal of claim 7, wherein the support arm can be slightly deformed. 9. The tail portion includes a soldering portion vertically extending from a distal end portion of the main body.
An electrically conductive terminal of the described electrical connector. 10. An insulating housing having a receiving hole and an electrically conductive terminal for receiving and fixing the receiving hole, the electrically conductive terminal having a first end portion and a second end portion and having a main surface. Then, in order to attach the solder ball to the main body which is axially extended and is accommodated in the accommodation hole, the first end portion of the main body is curved so as to be perpendicular to the main surface of the main body. And a soldering portion for mounting a solder ball, and a terminal extending inwardly from the second end of the main body and inclined with respect to the axial direction to interfere with a part of the housing to accommodate the terminal in the accommodation hole. A support arm to be fixed to the main body, and an elastic arm that extends obliquely from the edge side of the main body and is inclined with respect to the main surface for inserting the pin of the electronic device into the accommodation hole. And electrical connector. 11. The electrical connector according to claim 10, wherein the support arm is inclined at about 45 degrees with respect to the axial direction. 12. The electrical connector according to claim 11, wherein the elastic arm is inclined at about 45 degrees with respect to the axial direction. 13. The electrical connector of claim 10, wherein the support arm is slightly deformable to interfere with and join the housing. 14. The electrical connector according to claim 1, wherein the terminal is arranged in the accommodation hole, and a part of the solder ball is allowed to protrude from the housing. 15. A plurality of accommodation holes penetrating through adjacent slots are provided, the accommodation holes are arranged along a longitudinal direction of the housing, and the slots are an insulating housing arranged in a lateral direction perpendicular to the longitudinal direction. , A plurality of flat arms that are housed in corresponding housing holes and are held in the slots, support arms that are fixed to the lateral slots, and elastic arms that extend longitudinally from the edge of the flat body. A terminal and a plurality of pin-type conductors extending downward in the corresponding receiving holes, each conductor moving in the vertical direction, and each conductor has a corresponding arm and an inner wall of the receiving hole extending in the vertical direction. Sandwiched between the conductor and the corresponding flat body of the terminal,
An electronic device that is laterally secured via both opposing arms of the resilient arm.